发明名称 |
PROCESS FOR THE PREPARATION OF FORMIC ACID |
摘要 |
<p>1. A process for the preparation of anhydrous or substantially anhydrous formic acid by hydrolyzing methyl formate in the presence of a formamide and then obtaining the formic acid from the hydrolysis mixture by distillation, wherein the hydrolysis is carried out in the presence of 0.5-3 moles, per mole of methyl formate, of a water-soluble formamide of the formula I see diagramm : EP0161544,P5,F1 where R**1 and R**2 are each alkyl or together form an alkylene group, giving a 5-membered to 7-membered ring, with the proviso that the sum of the carbon atoms in R**1 and R**2 is 5 or 6 and that, in the case of an alkylene group, a carbon atom which is not directly bonded to the N atom can be replaced by an oxygen atom.</p> |
申请公布号 |
EP0161544(B1) |
申请公布日期 |
1988.03.02 |
申请号 |
EP19850104902 |
申请日期 |
1985.04.23 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HOHENSCHUTZ, HEINZ, DR.;SCHMIDT, JOHANNES E., DR.;KIEFER, HANS, DR. |
分类号 |
C07B61/00;C07C53/02;B01J31/00;B01J31/02;C07C27/00;C07C27/02;C07C51/00;C07C51/09;C07C67/00;(IPC1-7):C07C53/02 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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